XTE J1752-223: back to optical quiescence

Bibcode
2010ATel.2818....1C
Corral-Santana, J. M.; Rodríguez-Gil, P.; Guerra, J. C.; Casares, J.
Bibliographical reference

The Astronomer's Telegram, #2818

Advertised on:
8
2010
Number of authors
4
IAC number of authors
0
Citations
2
Refereed citations
2
Description
We observed the black hole candidate XTE J1752-223 (ATel #2258) with the William Herschel Telescope (WHT) and the ACAM imager/spectrograph at the Observatorio del Roque de los Muchachos, La Palma, Spain. 200-s exposures were taken in the R and I bands under photometric conditions and 0.6-0.7-arcsec seeing on Aug 24.887 and Aug 24.893, respectively. The object has dropped substantially since the optical re-brightening reported in ATel #2805.
Type
Non-refereed
Black holes

It may interest you

  • Non-refereed
    New Robotic Telescope system progress towards critical design review
    The 4m class New Robotic Telescope (NRT) is an optical facility designed to revolutionize the rapid follow-up and classification of variable and transient objects. The project is at the stage where key systems are progressing through their detailed design phases, which presents a major engineering challenge for all project partners to manage design
    Copley, David et al.

    Advertised on:

    8
    2024
    Bibcode
    2024SPIE13094E..3WC
    Citations
    0
  • Non-refereed
    Phase diversity application on the EST MCAO testbench
    Phase Diversity (PD) is a technique widely used to measure and compensate for Non-Common Path Aberrations (NCPA) in optical systems. Beyond its traditional applications, PD has found further uses in solar astrophysics, where it enhances image quality by processing multiple images to correct residual aberrations. In this work, we introduce a
    Rodriguez-Linares, Nicolas et al.

    Advertised on:

    8
    2024
    Bibcode
    2024SPIE13097E..5OR
    Citations
    0
  • Non-refereed
    First light of the upgraded Gregor Infrared Spectrograph
    For more than ten years, the Gregor Infrared Spectrograph (GRIS) has been the infrared spectropolarimeter on the Gregor telescope since its inauguration in 2012. The instrument mainly performs polarimetric observations of the wavelength regions at 1083 and 1565nm, which have high scientific potential. There, observers can find spectral lines that
    Quintero Noda, C. et al.

    Advertised on:

    8
    2024
    Bibcode
    2024SPIE13094E..42Q
    Citations
    0